xref: /netbsd-src/external/ibm-public/postfix/dist/src/master/master_flow.c (revision 41fbaed053f8fbfdf9d2a4ee0a7386a3c83f8505)
1 /*	$NetBSD: master_flow.c,v 1.1.1.1 2009/06/23 10:08:49 tron Exp $	*/
2 
3 /* System library. */
4 
5 #include <sys_defs.h>
6 #include <unistd.h>
7 #include <stdlib.h>
8 
9 /* Utility library. */
10 
11 #include <msg.h>
12 #include <iostuff.h>
13 
14 /* Application-specific. */
15 
16 #include <master.h>
17 #include <master_proto.h>
18 
19 int     master_flow_pipe[2];
20 
21 /* master_flow_init - initialize the flow control channel */
22 
master_flow_init(void)23 void    master_flow_init(void)
24 {
25     const char *myname = "master_flow_init";
26 
27     if (pipe(master_flow_pipe) < 0)
28 	msg_fatal("%s: pipe: %m", myname);
29 
30     non_blocking(master_flow_pipe[0], NON_BLOCKING);
31     non_blocking(master_flow_pipe[1], NON_BLOCKING);
32 
33     close_on_exec(master_flow_pipe[0], CLOSE_ON_EXEC);
34     close_on_exec(master_flow_pipe[1], CLOSE_ON_EXEC);
35 }
36